package org.rabbitmq.test1;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.CancellationException;
import java.util.concurrent.TimeoutException;

/**
 * 消费者 接收消息的
 */
public class Consumer {
    //队列名称
    public static final String QUEUE_NAME = "hello";
    //接收消息
    public static void main(String[] args) throws IOException, TimeoutException {
        //创建连接工厂
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("119.23.74.144");
        factory.setUsername("admin");
        factory.setPassword("admin");
        Connection connection = factory.newConnection();

        Channel channel = connection.createChannel();

        //声明 接收消息
        DeliverCallback deliverCallback = (consumerTag,message) ->{
            System.out.println(new String(message.getBody()));
        };

        //取消消息时的回调
        CancelCallback cancelCallback = consumerTag ->{
            System.out.println("消息消费被中断");
        };
//        接收消息
        /**
         * 消费者接收消息
         * 1.消费哪个队列
         * 2.消费成功后是否要自动应答true代表的是自动应答，false
         * 3.消费者未成功消费回调
         * 4.消费者取消消费的回调
         */

        channel.basicConsume(QUEUE_NAME,true,deliverCallback,cancelCallback);
    }
}
